American Dad! season 20

The twentieth season of the American TV series American Dad! originally aired on TBS from March 27, 2023 to December 18, 2023, and consisted of 22 episodes. The season featured guest appearances from Pete Davidson, Anjelica Huston, Jason Alexander, Jaleel White, Chris Sullivan, Ann Dowd, Amy Sedaris, Alan Tudyk, Alyson Hannigan, and Simon Helberg. It included the series' 350th episode. The season went on hiatus on May 29, 2023 after the airing of the 9th episode, and returned on Labor Day on September 4, 2023 with the 10th episode of the season.

Production
On December 16, 2021, TBS renewed American Dad! for seasons 20 and 21, following the end of the show's eighteenth season. On May 12, 2023, it was announced that the showrunners of American Dad!, including Seth MacFarlane, would temporarily leave the show as a result of the ongoing Writers Guild of America strike. While this decision will not have an immediate effect on the show, it could impact future episodes if the strike is prolonged.

Marketing
The twentieth season was promoted with a contest titled "The Next Roger" by the show's official Twitter account and the TBS website. Users would need to tweet their persona ideas, and the winner would have their idea featured in the series' twenty-first season.

Release
The series' twentieth season was announced on March 6, 2023, with a special trailer with the tagline "18 Seasons, and Still Proud", showcasing moments from the upcoming season. The season premiered on March 27, 2023 with episodes coming to Hulu later in the year.